package cn.lzit.sy6;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

public class CircleServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        String s =req.getParameter("radius");
        Circle c = new Circle();
        Double r = Double.parseDouble(s);
        c.getArea();
        PrintWriter out = resp.getWriter();
        out.println("圆面积是:" + c.getArea());
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        doGet(req, resp);
    }
}
